KR100190635B1 - Width magnifying device of voice coil of speaker - Google Patents

Abstract

The present invention relates to an apparatus for amplifying a voice coil of a loudspeaker, and in its technical construction, a magnet (10) and an upper plate (9) are successively joined to the periphery of a lower plate (11) The vibration plate 12 is attached to the frame 8 coupled to the upper surface of the upper plate 9 with an edge 6 And a gasket 7 is coupled to an upper side of the lower plate 11 and a lower end of the lower plate 11 is connected to the inner periphery of the damper 4 and 4 'of the voice coil 5, And an amplitude expanding section 13 which is integrally joined to the fixing piece 1 which is integrally projected on the upper surface and joined together.

Description

Speaker's voice coil amplitude amplifying device

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an amplitude amplifying apparatus for a speaker that can solve the disadvantage that high-power (HI-POWER) can not be realized because amplitude of a voice coil can not be enlarged due to space limitation in a general small speaker A magnet and an upper plate are sequentially joined to the periphery of the lower plate, a voice coil is installed on the inner periphery of the upper plate, and a vibration plate And a damper is connected to an inner peripheral edge of the voice coil so that a central bottom portion of the vibration coil is connected to the upper surface of the lower plate A damper is provided on the inner peripheral edge of the voice coil It is extremely easy to manufacture and install it with a simple structure of joining to a fixing piece lying on the upper side of the lower plate, the diameter of the voice coil is enlarged to enlarge the amplitude of the voice coil and the amplitude of the voice coil is enlarged, To an apparatus for amplifying the voice coil amplitude of a speaker so as to be capable of being powered.

In general, a structure of a known speaker includes a magnetic circuit formed of a yoke having a magnet and a bobbin wound around the voice coil, a vibrating plate having an inner periphery connected to a periphery of an upper end of the magnetic circuit, A damper for adjusting vibration of the plate, a frame to which one end of the damper is fixed, and a speaker as an edge for fixing the edge of the upper end of the vibration plate.

1, a conventional speaker related to such a technique includes a magnetic circuit 34 composed of a yoke in which a magnet 31 is embedded and a bobbin BOBBIN in which a voice coil 37 is wound, The vibration plate 39 is arranged at the center of the vibration plate 39 and the upper edge of the vibrating plate 39 is supported by the frame 33 by the edge 41. The lower plate 36 is opposed to the vibration plate 39 via the magnet 31 And one end of the damper 40 is connected to the bottom of the vibration plate 39 and the other end of the damper 40 is connected to the frame 33.

When the current is applied to the voice coil 37, the voice coil 37 magnetized according to the intensity of the current is caused to move upward and downward by the reciprocating action of the magnet 31 And the vibration plate 39 integrally connected to the voice coil 37 is vibrated by the motion of the voice coil 37 and the change of the sound pressure due to the pressure change between the vibration plate 39 and the air, . ≪ / RTI >

However, in the conventional coupling structure of the magnetic circuit for a speaker, when a high-power speaker is required by connecting a damper to the outer periphery of the voice coil, the bobbin to which the voice coil 37 is wound should be enlarged. The area of the damper 40 is relatively reduced to limit the upper and lower widths of the voice coil 37. This makes it impossible to enlarge the diameter of the bobbin. When the bobbin is expanded, the volume of the speaker is increased, Thus, there have been many problems such as the impossibility of realizing miniaturization with high power.

It is an object of the present invention to provide a simple structure in which a damper is provided on the inner circumference of a voice coil and is joined to a fixing piece lying on the upper side of the lower plate, And the voice coil is enlarged to enlarge the amplitude of the voice coil, the amplitude of the voice coil is increased to make the small speaker high-power, the voice coil is enlarged by the diameter of the voice coil, And to provide a voice coil amplitude amplifying device for a small-sized speaker capable of miniaturizing a speaker by fixing the vibration of the voice coil by a support.

According to an aspect of the present invention, there is provided a method of manufacturing an upper plate, comprising the steps of: providing a lower plate integrally formed with pawls on an upper side of a central portion thereof; sequentially stacking magnets and an upper plate on the lower plate; The vibration plate is connected to the frame coupled to the upper surface of the upper plate as an edge and the gasket is coupled to the upper surface of the vibration plate and the damper is mounted on the inner periphery of the voice coil And the bottom surface of the central portion is connected to a fixing piece integrally joined to the upper surface of the lower plate.

1 is a cross-sectional view showing a conventional speaker

2 is a sectional structural view showing an amplitude amplifying apparatus of a speaker according to the present invention;

3 is a perspective view showing a damper structure according to the present invention.

4 is a graph showing the sound pressure relationship of the speaker according to the present invention

DESCRIPTION OF THE REFERENCE NUMERALS

1: Fixing piece 2: Coupling part

3: Dust cover 4: Damper

5: Voice coil 6: Edge

9: upper plate 10: magnet

12: vibration plate 13: magnetic circuit part

14:

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a cross-sectional view of a speaker amplifying apparatus according to the present invention. FIG. 3 is a perspective view illustrating a damper coupling unit according to the present invention. .

The magnetic circuit portion 13 for vibrating the voice coil 5 up and down when the current is drawn is provided with a lower plate 11 integrally formed with the pole at the upper side of the center portion, A magnet 10 and an upper plate 9 are sequentially joined to each other and a voice coil 5 is installed on the inner peripheral edge of the upper plate 9 to be connected to the vibration plate 12, Is connected to the frame 8 coupled to the upper side of the upper plate 9 as an edge 6 and the gasket 7 is coupled to the upper side thereof.

The amplitude expanding section 13 for amplifying the amplitude of the voice coil 5 has a structure in which the damper 4 or 4 'is connected to the inner periphery of the voice coil 5, And integrally joined to the fixing piece 1, which is integrally projected on the upper surface and joined together.

The operation of the present invention having such a structure will be described as follows.

The vibrating plate 12 integrally connected to the voice coil 5 is vibrated by the upward and downward movement of the voice coil 5 as shown in Figs. 2 and 3, and the vibration of the vibrating plate 12 A change in sound pressure due to the change in the pressure with the air caused by the sound is generated.

Subsequently, the edge (6) causes the bent portion to expand as the vibrating plate (12) is lifted, thereby assisting the lifting movement and restoring the position by the elastic force of the edge (6). When the vibrating plate (12) The vibration plate 12 is easily vibrated by the edge 6 and the dust cover 3 is engaged with the inner circumference of the vibration plate 12 Thereby preventing dust from flowing into the circuit portion 14. [

A gasket 7 is coupled to an upper surface of the edge 6 so that the vibrating plate 12 is firmly fixed to the frame 8 and the voice coil 5 enlarges the diameter of the bobbin The sound pressure can be raised by increasing the diameter of the coiled voice coil 5. When the amplitude of the vibration plate 12 due to the upward and downward movements of the voice coil 5 is adjusted to adjust the amplitude, ) 4 'are provided on the inner periphery of the voice coil 5 to be easily supported when the amplitude of the voice coil 5 is enlarged.

As shown in FIG. 4, the damper 4 (4 ') prevents amplitude reduction due to the relative reduction of the damper coupled to the outer periphery of the bobbin, which is a conventional problem in expanding the inner diameter of the bobbin. The dampers 4 and 4 'are provided on the inner circumference of the voice coil 5 to prevent amplitude reduction and the dampers 4 and 4' to be fixed to the support 1 when the amplitude of the voice coil 5 is enlarged, ), Thereby significantly increasing the bass characteristics.

The support base 1 is formed so as to be positioned at the inner side of the dust cover 3 at an end of the vibration plate 12 so that the amplitude of the voice coil 12 can be increased.

As described above, the resonance absorber of the speaker according to the present invention has a simple structure in which a ring is connected to a bridge connected to the upper side of an edge, and a resonance absorbing film is formed on the upper and lower sides thereof, And the ring can be mounted on a bridge connected to the upper side of the edge to form a resonance absorbing film and an air cushion layer to flatten the frequency characteristic of the speaker So that it is possible to enjoy the performance of the speaker, and it is possible to achieve a flattening of the frequency characteristic by eliminating the split resonance by the resonance absorbing film connected to the bridge without changing the structure or applying the adhesive.

Claims (2)

A magnet 10 and an upper plate 9 are sequentially joined to the periphery of the lower plate 11 and a voice coil 5 is installed on the inner periphery of the upper plate 9 to form a vibration plate 12 The vibration plate 12 is connected to the frame 8 coupled to the upper side of the upper plate 9 as an edge 6 and has a magnetic circuit part 1 to which a gasket 7 is coupled at an upper side thereof, , An amplitude enlargement part (4) for connecting the damper (4) and the damper (4) to the inner periphery of the voice coil (5) and joining the bottom part of the center part to the fixing piece (14) for amplifying the amplitude of the loudspeaker The method according to claim 1, Characterized in that the support base (1) is formed with a height so as to be located inside the dust cover (3) at least at an end of the vibration plate (12)